Terahertz and gigahertz magnetoratchets in graphene-based two-dimensional metamaterials

DOI to cite this document:: 10.5283/epub.75121

Hild, Marcel ; Mönch, Erwin

; Golub, Leonid E.

; Dmitriev, Ivan A.

; Yahniuk, Ivan ; Amann, Katharina ; Amann, Julia ; Eroms, Jonathan

; Wunderlich, Jörg ; Weiss, Dieter

; Consejo, C. ; Bray, Cedric ; Maussang, K. ; Teppe, Frederic ; Gumenjuk-Sichevska, J. ; Watanabe, Kenji

; Taniguchi, Takashi ; Ganichev, Sergey

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Date of publication of this fulltext: 06 Mar 2025 06:37

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Abstract

We report on the observation and study of the magnetoratchet effect in a graphene-based two-dimensional metamaterial formed by a graphite gate that is placed below a graphene monolayer and patterned with an array of triangular antidots. We demonstrate that terahertz/gigahertz excitation of the metamaterial leads to sign-alternating magneto-oscillations with an amplitude that exceeds the ratchet ...